Wrong Place of supply

Service recipient is in Tamilnadu state. Services provider is in also Tamilnadu state.

But wrongly services provider mentioned in his tax invoice following.

Bill to Tamilnadu party (recipient)
ship to also Tamilnadu party (recipient)

But wrongly Service provider mention place of supply - Gujrath
and ultimately service provider charged IGST , instead of Sgst +Cgst.

while seeing 2B it is displaced as Igst.

Now question arouse, what we can do.If we take input as igst ,but actually service is in Tamilnadu

Pl.suggest what we can do rightly, so that gst department not raise any show cause notice